JPH0840720A - Production of fine particle of alkali metal compound having low bulk density - Google Patents
Production of fine particle of alkali metal compound having low bulk densityInfo
- Publication number
- JPH0840720A JPH0840720A JP6200318A JP20031894A JPH0840720A JP H0840720 A JPH0840720 A JP H0840720A JP 6200318 A JP6200318 A JP 6200318A JP 20031894 A JP20031894 A JP 20031894A JP H0840720 A JPH0840720 A JP H0840720A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- combustion gas
- aqueous solution
- metal compound
- bulk density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 150000001339 alkali metal compounds Chemical class 0.000 title claims abstract description 21
- 239000010419 fine particle Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 24
- 239000000567 combustion gas Substances 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 abstract description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 14
- 239000002245 particle Substances 0.000 abstract description 12
- 239000011780 sodium chloride Substances 0.000 abstract description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 2
- 239000001103 potassium chloride Substances 0.000 abstract description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 2
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 2
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010892 electric spark Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/44—Preparation in the form of granules, pieces, or other shaped products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/22—Preparation in the form of granules, pieces, or other shaped products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/004—Preparation in the form of granules, pieces or other shaped products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/38—Preparation in the form of granules, pieces or other shaped products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D9/00—Nitrates of sodium, potassium or alkali metals in general
- C01D9/18—Preparation in the form of shaped products, e.g. granules
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Drying Of Solid Materials (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Glanulating (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Seasonings (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルカリ金属化合物の
低嵩密度微細粒子の製造方法に関する。例えば塩化ナト
リウム、即ち食塩の低嵩密度微細粒子は、刺激性がなく
食味が改善されるため、特殊な調味料としての用途が期
待されている。その他のアルカリ金属化合物の低嵩密度
微細粒子も、粗大粒子に比べて溶解性、反応性などの点
で特異な現象を示すため、独特な用途が期待される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing low bulk density fine particles of an alkali metal compound. For example, sodium chloride, that is, low-bulk-density fine particles of sodium chloride, which are not irritating and have improved taste, are expected to be used as a special seasoning. Other low-bulk-density fine particles of an alkali metal compound also show unique phenomena in terms of solubility, reactivity, etc., as compared with coarse particles, and are therefore expected to have unique applications.
【０００２】[0002]
【従来の技術】従来、低嵩密度の粒子を製造する方法と
しては噴霧乾燥法が用いられてきた。しかしこの方法に
より製造される粒子の大きさは噴霧された液滴の大きさ
により支配されるため、ミクロンオーダーの微細粒子を
製造することは困難であった。噴霧乾燥により製造され
た粒子を更に機械的に粉砕すれば微細粒子になるが、工
程が２段階になるため製造コストが増加する。2. Description of the Related Art Conventionally, a spray drying method has been used as a method for producing particles having a low bulk density. However, since the size of particles produced by this method is governed by the size of sprayed droplets, it has been difficult to produce microscopic particles. If the particles produced by spray-drying are further mechanically pulverized, they become fine particles, but the production cost increases because the process has two stages.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、水溶液から
一段階の工程でアルカリ金属化合物の低嵩密度微細粒子
を製造できる方法を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method capable of producing low bulk density fine particles of an alkali metal compound from an aqueous solution in a single step.
【０００４】[0004]
【課題を解決するための手段】本発明にかかわるアルカ
リ金属化合物の低嵩密度微細粒子の製造方法は、アルカ
リ金属化合物の水溶液をパルス燃焼ガスに接触させるこ
とを特徴とする。The method for producing fine particles of low bulk density of an alkali metal compound according to the present invention is characterized by bringing an aqueous solution of an alkali metal compound into contact with a pulse combustion gas.
【０００５】本発明が適用されるアルカリ金属化合物と
しては、塩化ナトリウム（食塩）、塩化カリウム、硫酸
ナトリウム（芒硝）、硫酸カリウム、水酸化ナトリウム
（苛性ソーダ）、水酸化カリウム（苛性カリ）などが例
示される。Examples of alkali metal compounds to which the present invention is applicable include sodium chloride (sodium chloride), potassium chloride, sodium sulfate (Glauber's salt), potassium sulfate, sodium hydroxide (caustic soda), potassium hydroxide (caustic potash), and the like. It
【０００６】パルス燃焼ガスとは、通常毎秒５０〜７０
０回のサイクルで脈動する燃焼ガスで、いわゆるパルス
燃焼器により発生する。その燃焼ガス雰囲気中へ送入さ
れた含水原料は熱風乾燥効果以外に急速な脈動作用によ
る物理的衝撃特性（音波力及び圧力を含む）の作用を受
け、湿潤原料は一瞬の間に有用な製品又は脱水された廃
棄物に変化し、乾燥された原料は焦げ焼けや成分の化学
変化を生じないので、熱風源としてパルス燃焼器を用い
た含水原料乾燥機は効率的な乾燥機として注目されてい
る。本発明者らは、このパルス燃焼ガスの作用について
研究を進めた結果、アルカリ金属化合物の水溶液をパル
ス燃焼ガスに接触させると、アルカリ金属化合物の低嵩
密度微細粒子が得られることを発見した。The pulse combustion gas is usually 50 to 70 per second.
Combustion gas that pulsates in zero cycles and is generated by a so-called pulse combustor. The water-containing raw material fed into the combustion gas atmosphere is affected by physical impact characteristics (including sonic force and pressure) due to rapid pulsation in addition to the hot air drying effect, and the wet raw material is a useful product in an instant. Or, since the dried raw material is changed to dehydrated waste and the dried raw material does not cause charring or chemical changes in the components, the water-containing raw material dryer using a pulse combustor as a hot air source attracts attention as an efficient dryer. There is. As a result of research on the action of the pulse combustion gas, the present inventors have found that contacting an aqueous solution of the alkali metal compound with the pulse combustion gas produces low bulk density fine particles of the alkali metal compound.
【０００７】パルス燃焼器はジェットエンジン技術を基
本とするもので、含水原料乾燥機用として各種のタイプ
のものが提案されているが、代表例として特公平６−３
３９３９号に開示されたものを図１により説明すると、
パルス燃焼器１は少なくとも１個の空気送入管２、少な
くとも１個の燃料送入管３及び少なくとも１個の点火手
段４を有する燃焼室５、及び次第に径が大きくなる形状
の燃焼ガス排気管６が同一軸線Ａ−Ａ上に順次配置さ
れ、且つ燃焼室が排気管と接続する部分７の径が絞られ
ている形状を有するものである。点火手段４としては電
気的点火栓（イグニション・プラグ）とか、口火燃焼ガ
スが用いられる。本発明においては、このような形式の
パルス燃焼器により発生するパルス燃焼ガスのみなら
ず、その他の形式のパルス燃焼器により発生するパルス
燃焼ガスも用いることができる。The pulse combustor is based on jet engine technology, and various types have been proposed for a water-containing raw material dryer, but as a typical example, Japanese Patent Publication No. 6-3.
Referring to FIG. 1, what is disclosed in Japanese Patent No. 3939 will be described.
The pulse combustor 1 includes at least one air inlet pipe 2, a combustion chamber 5 having at least one fuel inlet pipe 3 and at least one ignition means 4, and a combustion gas exhaust pipe having a gradually increasing diameter. 6 are sequentially arranged on the same axis AA, and the diameter of the portion 7 where the combustion chamber is connected to the exhaust pipe is reduced. As the ignition means 4, an electric spark plug (ignition plug) or a spark combustion gas is used. In the present invention, not only the pulse combustion gas generated by such a type of pulse combustor but also the pulse combustion gas generated by another type of pulse combustor can be used.
【０００８】このパルス燃焼器の起動に当っては、空気
送入管２から空気を供給し、燃料送入管３からディーゼ
ルオイル等の燃料油を噴霧し、燃焼室５内に空気及び燃
料が充満した状態で電気的点火栓４によりスパークを発
生させると、燃料は爆発的に燃焼して熱風となり排気管
６へ排出される。この際燃焼室５内は一時的に高圧にな
るので空気及び燃料の供給は一時的に遮断されるが、燃
焼ガスが排気管６へ排出され燃焼室５内が減圧状態にな
ると空気及び燃料の供給が再開され、再着火され爆発的
に燃焼して熱風となる現象を繰り返す。このような間欠
的な爆発により脈動する熱風を生じ、また音波も発生す
る。そこで含水原料を排気管６内又は排気管出口へ供給
すれば、含水原料は熱風乾燥効果以外に急速な脈動作用
による物理的衝撃特性（音波力及び圧力を含む）の作用
を受け、湿潤原料は一瞬の間に脱水される。このように
して起動されたパルス燃焼器は、時間の経過と共に燃焼
室５の内壁が灼熱状態になるので、送入された空気及び
燃料は電気的点火栓でスパークを発生させなくても、灼
熱された内壁に触れて自動的に点火し、間欠的な爆発的
燃焼を繰り返す。これは焼玉エンジンの作動原理と同じ
である。この段階に達したら電気的点火栓によるスパー
ク発生を停止して運転を継続する。At the time of starting the pulse combustor, air is supplied from the air inlet pipe 2, fuel oil such as diesel oil is sprayed from the fuel inlet pipe 3, and air and fuel are discharged into the combustion chamber 5. When a spark is generated by the electric spark plug 4 in a filled state, the fuel explosively burns into hot air and is discharged to the exhaust pipe 6. At this time, since the pressure in the combustion chamber 5 temporarily becomes high, the supply of air and fuel is temporarily cut off. However, when the combustion gas is discharged to the exhaust pipe 6 and the pressure in the combustion chamber 5 is reduced, the air and fuel are not supplied. The supply is restarted, reignited and explosively burned to become hot air. Such intermittent explosions generate pulsating hot air and also generate sound waves. Therefore, if the water-containing raw material is supplied into the exhaust pipe 6 or to the exhaust pipe outlet, the water-containing raw material is subjected to physical shock characteristics (including sonic force and pressure) due to rapid pulsating action in addition to the hot air drying effect, and the wet raw material is It is dehydrated in a moment. In the pulse combustor thus started, the inner wall of the combustion chamber 5 becomes a burning state with the passage of time. Therefore, the introduced air and fuel do not burn even if spark is generated by the electric spark plug. The inner wall is touched and ignited automatically, and intermittent explosive combustion is repeated. This is the same as the operating principle of the burnt ball engine. When this stage is reached, the spark generation by the electric spark plug is stopped and the operation is continued.
【０００９】図２は、図１に示したパルス燃焼器を内蔵
するパルス乾燥機の構成の具体例を示す断面図であり、
円筒状の乾燥機本体８の一端にパルス燃焼器１を設置
し、乾燥機本体８の他端はサイクロン式乾燥粉末捕集器
９に接続してある。パルス燃焼器の燃焼ガス排気管６内
部に設けられた原料水溶液送入口１０又は燃焼ガス排気
管６を出たところに設けられた原料水溶液送入口１１か
らアルカリ金属化合物の水溶液を供給すると、該水溶液
は瞬時に脱水して嵩密度が０．２〜０．３ｇ／ｍｌ、粒
径が１０〜４０ミクロンのアルカリ金属化合物低嵩密度
微細粒子となり、サイクロン式乾燥粉末捕集器９で燃焼
ガスから分離され、乾燥粉末排出口１２から抜き出され
る。乾燥粉末を分離した燃焼ガスは分離ガス排出口１３
から排出される。FIG. 2 is a sectional view showing a specific example of the configuration of a pulse dryer having the pulse combustor shown in FIG.
The pulse burner 1 is installed at one end of a cylindrical dryer main body 8, and the other end of the dryer main body 8 is connected to a cyclone type dry powder collector 9. When the aqueous solution of the alkali metal compound is supplied from the raw material aqueous solution inlet 10 provided inside the combustion gas exhaust pipe 6 of the pulse combustor or the raw material aqueous solution inlet 11 provided at the place exiting the combustion gas exhaust pipe 6, the aqueous solution of the alkali metal compound is supplied. Is instantly dehydrated to become alkali metal compound low bulk density fine particles having a bulk density of 0.2 to 0.3 g / ml and a particle size of 10 to 40 microns, and separated from the combustion gas by a cyclone type dry powder collector 9. And is extracted from the dry powder discharge port 12. The combustion gas from which the dry powder has been separated is separated gas outlet 13
Emitted from.
【００１０】アルカリ金属化合物の水溶液は、パルス燃
焼ガスの温度が３００〜６００℃の部分に供給すること
が望ましい。アルカリ金属化合物の水溶液の供給方法
は、原料水溶液送入口９から水溶液のみを供給しても良
いが、原料水溶液送入口９を二重管にして、その一方か
らアルカリ金属化合物の水溶液、他方から圧縮空気を供
給する二流体ノズルを使用すれば、ノズル径、圧縮空気
圧力、乾燥温度等を調整することにより、微細粒子の粒
径を調節することが可能である。The aqueous solution of the alkali metal compound is preferably supplied to the portion where the temperature of the pulse combustion gas is 300 to 600 ° C. In the method of supplying the aqueous solution of the alkali metal compound, only the aqueous solution may be supplied from the raw material aqueous solution inlet port 9, but the raw material aqueous solution inlet port 9 may be a double tube, and one of the aqueous solution of the alkali metal compound and the other may be compressed. If a two-fluid nozzle that supplies air is used, it is possible to adjust the particle size of fine particles by adjusting the nozzle diameter, compressed air pressure, drying temperature, and the like.
【００１１】[0011]
【実施例１】図２に示した基本構成を有するパルス乾燥
装置の原料水溶液送入口１１から、市販の食塩の２０重
量％水溶液を供給して温度３００℃のパルス燃焼ガス
（爆発サイクル：毎秒５００〜６００回）と接触させ
た。粒度０．３〜０．７ｍｍ，嵩密度０．７６ｇ／ｍｌ
の原料食塩（塩化ナトリウムの真比重ｄ＝２．１６４）
から、粒度１０〜４０ミクロン、嵩密度０．２３ｇ／ｍ
ｌの食塩の低嵩密度微細粒子が得られた。顕微鏡観察し
たところ、この食塩の低嵩密度微細粒子は中空の球体で
あった。この食塩の低嵩密度微細粒子は、おしろいのよ
うな手ざわりで、刺激性がなく、食味が改善されている
ため、特殊な調味料としての用途が期待される。Example 1 A 20% by weight aqueous solution of commercially available salt was supplied from a raw material aqueous solution inlet 11 of a pulse dryer having the basic configuration shown in FIG. ˜600 times). Particle size 0.3-0.7 mm, bulk density 0.76 g / ml
Raw material salt (true specific gravity of sodium chloride d = 2.164)
From, particle size 10-40 microns, bulk density 0.23 g / m
1 l of low bulk density fine particles of sodium chloride were obtained. When observed under a microscope, the low-bulk-density fine particles of this salt were hollow spheres. The low-bulk-density fine particles of this salt have a texture like a white powder, are not irritating, and have improved taste, and are therefore expected to be used as a special seasoning.
【００１２】[0012]
【発明の効果】水溶液から一段階の工程でアルカリ金属
化合物の低嵩密度微細粒子を製造できる。INDUSTRIAL APPLICABILITY Low bulk density fine particles of an alkali metal compound can be produced from an aqueous solution in a single step.
【図１】本発明で使用するパルス燃焼器の構成の具体例
を示す断面図である。FIG. 1 is a sectional view showing a specific example of the configuration of a pulse combustor used in the present invention.
【図２】図１に示したパルス燃焼器を内蔵するパルス乾
燥機の構成の具体例を示す断面図である。FIG. 2 is a cross-sectional view showing a specific example of the configuration of a pulse dryer having the pulse combustor shown in FIG.
１ パルス燃焼器 ２ 空気送入管 ３ 燃料送入管 ４ 点火手段 ５ 燃焼室 ６ 燃焼ガス排気管 ７ 絞り部分 ８ 乾燥機本体 ９ サイクロン式乾燥粉末捕集器 １０ 原料水溶液送入口 １１ 原料水溶液送入口 １２ 乾燥粉末排出口 １３ 分離ガス排出口 1 Pulse Combustor 2 Air Inlet Pipe 3 Fuel Inlet Pipe 4 Ignition Means 5 Combustion Chamber 6 Combustion Gas Exhaust Pipe 7 Throttling Part 8 Dryer Main Body 9 Cyclone Type Dry Powder Collector 10 Raw Material Aqueous Solution Inlet 11 Raw Material Aqueous Solution Inlet 12 Dry powder outlet 13 Separation gas outlet
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ２６Ｂ 23/02 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display area F26B 23/02 A
Claims (2)
焼ガスに接触させることを特徴とするアルカリ金属化合
物の低嵩密度微細粒子の製造方法。1. A method for producing fine particles of low bulk density of an alkali metal compound, which comprises contacting an aqueous solution of the alkali metal compound with a pulse combustion gas.
気送入管、少なくとも１個の燃料送入管及び少なくとも
１個の点火手段を有する燃焼室、及び次第に径が大きく
なる形状の燃焼ガス排気管が同一軸線上に順次配置さ
れ、且つ燃焼室が排気管と接続する部分の径が絞られて
いる形状を有するパルス燃焼器の燃焼室内で燃料を燃焼
することにより発生したものである請求項１に記載の低
嵩密度微細粒子の製造方法。2. A combustion chamber in which the pulse combustion gas has at least one air inlet pipe, at least one fuel inlet pipe and at least one ignition means, and combustion gas exhaust gas having a gradually increasing diameter. It is generated by burning fuel in a combustion chamber of a pulse combustor in which the pipes are sequentially arranged on the same axis and the diameter of the portion where the combustion chamber is connected to the exhaust pipe is narrowed. 1. The method for producing low bulk density fine particles according to 1.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20031894A JP3650422B2 (en) | 1994-08-03 | 1994-08-03 | Method for producing low bulk density fine particles of alkali metal compound |
| AU27256/95A AU684965B2 (en) | 1994-08-03 | 1995-07-28 | Method for producing low bulk density hollow fine powder of alkali metal compound |
| KR1019950023408A KR960006992A (en) | 1994-08-03 | 1995-07-31 | Method for preparing low volume hollow microparticles of alkali metal compound |
| US08/510,339 US5651796A (en) | 1994-08-03 | 1995-08-02 | Method for producing low bulk density hollow fine powder of alkali metal compound |
| DE69503439T DE69503439T2 (en) | 1994-08-03 | 1995-08-02 | Process for the preparation of table salt in the form of a voided powder with a low bulk density |
| EP95112166A EP0696551B1 (en) | 1994-08-03 | 1995-08-02 | Method of producing low bulk density hollow fine powder of table salt |
| CA002155365A CA2155365A1 (en) | 1994-08-03 | 1995-08-03 | Method for producing low bulk density hollow fine powder of alkali metal compound |
| CN95115215A CN1127676A (en) | 1994-08-03 | 1995-08-03 | Method for producing low bulk density hollow fine powder of alkali metal compound |
| TW084108264A TW287116B (en) | 1994-08-03 | 1995-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20031894A JP3650422B2 (en) | 1994-08-03 | 1994-08-03 | Method for producing low bulk density fine particles of alkali metal compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0840720A true JPH0840720A (en) | 1996-02-13 |
| JP3650422B2 JP3650422B2 (en) | 2005-05-18 |
Family
ID=16422319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20031894A Expired - Fee Related JP3650422B2 (en) | 1994-08-03 | 1994-08-03 | Method for producing low bulk density fine particles of alkali metal compound |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5651796A (en) |
| EP (1) | EP0696551B1 (en) |
| JP (1) | JP3650422B2 (en) |
| KR (1) | KR960006992A (en) |
| CN (1) | CN1127676A (en) |
| AU (1) | AU684965B2 (en) |
| CA (1) | CA2155365A1 (en) |
| DE (1) | DE69503439T2 (en) |
| TW (1) | TW287116B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519539A (en) * | 1998-07-01 | 2002-07-02 | ザ、プロクター、エンド、ギャンブル、カンパニー | A method for removing water from a fibrous web using an oscillating and reversing impinging gas |
| JP2006282434A (en) * | 2005-03-31 | 2006-10-19 | Dai Ichi Kogyo Seiyaku Co Ltd | Method for producing perovskite complex oxide |
| WO2008004407A1 (en) * | 2006-06-08 | 2008-01-10 | Pultech Corporation | Method of pulverization drying and pulverization drying apparatus |
| JP2009542573A (en) * | 2006-07-13 | 2009-12-03 | ズード−ケミー アクチェンゲゼルシャフト | Method for producing nanocrystalline metal oxide |
| JP2016505246A (en) * | 2012-11-21 | 2016-02-25 | エスアンドピー・イングリーディエント・ディベロップメント・エルエルシー | Low sodium salt composition and methods for making and using the same |
| JP2019025384A (en) * | 2017-07-26 | 2019-02-21 | 太平洋セメント株式会社 | Method for producing hollow particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100600258B1 (en) * | 1999-12-24 | 2006-07-13 | 주식회사 하이닉스반도체 | Contact hole formation method of semiconductor device |
| JPWO2004041427A1 (en) * | 2002-11-08 | 2006-03-02 | 第一工業製薬株式会社 | Inorganic fine particles, inorganic raw material powders and methods for producing them |
| US7984566B2 (en) * | 2003-10-27 | 2011-07-26 | Staples Wesley A | System and method employing turbofan jet engine for drying bulk materials |
| CN101155632A (en) * | 2005-04-07 | 2008-04-02 | 三井化学株式会社 | Capsular fine particle comprising olefin polymer |
| US8524114B2 (en) | 2005-07-27 | 2013-09-03 | John Arthur Bewsey | Nitrates |
| WO2007112501A1 (en) * | 2006-03-31 | 2007-10-11 | Protech Research Pty Ltd | Potentiation of food additives |
| TWI369546B (en) | 2008-12-03 | 2012-08-01 | Au Optronics Corp | Light guide plate microstructure |
| WO2022159417A1 (en) * | 2021-01-20 | 2022-07-28 | Natural Environment R&D, Llc | Supersonic purification of water and apparatus therefor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE19556E (en) * | 1927-10-03 | 1935-04-30 | Method of controlling character | |
| US2887390A (en) * | 1953-07-13 | 1959-05-19 | Univ Minnesota | Method and apparatus for spray drying |
| US3148023A (en) * | 1963-07-15 | 1964-09-08 | Int Salt Co | Low bulk density chloride and the process for preparing same |
| JPS6389417A (en) * | 1986-10-01 | 1988-04-20 | Hashimoto Kasei Kogyo Kk | Production of anhydrous potassium fluoride |
| JP2843047B2 (en) * | 1989-03-29 | 1999-01-06 | 三田尻化学工業株式会社 | Hollow sphere made of sodium sulfate and method for producing the same |
| JPH0628682B2 (en) * | 1989-12-16 | 1994-04-20 | 大阪富士工業株式会社 | Heat recovery system for pulse combustion dryer |
| JPH0628681B2 (en) * | 1989-12-16 | 1994-04-20 | 大阪富士工業株式会社 | Valveless pulse combustion method and valveless pulse combustor |
| JPH04357117A (en) * | 1991-06-03 | 1992-12-10 | Nkk Corp | Production of iron oxide by spray roasting and spray roasting device therefor |
| JPH0589417A (en) * | 1991-09-30 | 1993-04-09 | Toshiba Corp | Magnetic head |
| US5205728A (en) * | 1991-11-18 | 1993-04-27 | Manufacturing And Technology Conversion International | Process and apparatus utilizing a pulse combustor for atomizing liquids and slurries |
| RU2016650C1 (en) * | 1991-11-19 | 1994-07-30 | Станислав Александрович Сухов | Fluid material drying and granulating plant |
-
1994
- 1994-08-03 JP JP20031894A patent/JP3650422B2/en not_active Expired - Fee Related
-
1995
- 1995-07-28 AU AU27256/95A patent/AU684965B2/en not_active Ceased
- 1995-07-31 KR KR1019950023408A patent/KR960006992A/en not_active Withdrawn
- 1995-08-02 DE DE69503439T patent/DE69503439T2/en not_active Expired - Fee Related
- 1995-08-02 EP EP95112166A patent/EP0696551B1/en not_active Expired - Lifetime
- 1995-08-02 US US08/510,339 patent/US5651796A/en not_active Expired - Fee Related
- 1995-08-03 CN CN95115215A patent/CN1127676A/en active Pending
- 1995-08-03 CA CA002155365A patent/CA2155365A1/en not_active Abandoned
- 1995-08-08 TW TW084108264A patent/TW287116B/zh active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519539A (en) * | 1998-07-01 | 2002-07-02 | ザ、プロクター、エンド、ギャンブル、カンパニー | A method for removing water from a fibrous web using an oscillating and reversing impinging gas |
| JP2006282434A (en) * | 2005-03-31 | 2006-10-19 | Dai Ichi Kogyo Seiyaku Co Ltd | Method for producing perovskite complex oxide |
| WO2008004407A1 (en) * | 2006-06-08 | 2008-01-10 | Pultech Corporation | Method of pulverization drying and pulverization drying apparatus |
| JP2009542573A (en) * | 2006-07-13 | 2009-12-03 | ズード−ケミー アクチェンゲゼルシャフト | Method for producing nanocrystalline metal oxide |
| JP2016505246A (en) * | 2012-11-21 | 2016-02-25 | エスアンドピー・イングリーディエント・ディベロップメント・エルエルシー | Low sodium salt composition and methods for making and using the same |
| JP2019025384A (en) * | 2017-07-26 | 2019-02-21 | 太平洋セメント株式会社 | Method for producing hollow particles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69503439T2 (en) | 1999-03-18 |
| JP3650422B2 (en) | 2005-05-18 |
| CN1127676A (en) | 1996-07-31 |
| AU2725695A (en) | 1996-02-15 |
| EP0696551A1 (en) | 1996-02-14 |
| TW287116B (en) | 1996-10-01 |
| DE69503439D1 (en) | 1998-08-20 |
| US5651796A (en) | 1997-07-29 |
| CA2155365A1 (en) | 1996-02-04 |
| EP0696551B1 (en) | 1998-07-15 |
| KR960006992A (en) | 1996-03-22 |
| AU684965B2 (en) | 1998-01-08 |
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